bead contour 中文意思是什麼
bead contour
解釋
焊縫外形-
Rims for motor vehicles and trailers ; rims with flange b without bead retaining contour
汽車和掛車的輪輞.帶無卷邊鎖緊外形的b型輪緣的輪輞 -
Rims for motor vehicles and trailers ; rims with flange j, jk and k without bead retaining contour
汽車和掛車輪輞.帶無卷邊鎖緊外形的j jk k型輪緣的
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